133358401 has 16 divisors (see below), whose sum is σ = 148132800. Its totient is φ = 119046400.

The previous prime is 133358389. The next prime is 133358429. The reversal of 133358401 is 104853331.

It is not a de Polignac number, because 133358401 - 2⁵ = 133358369 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 133358401.

It is not an unprimeable number, because it can be changed into a prime (133358461) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 174861 + ... + 175621.

It is an arithmetic number, because the mean of its divisors is an integer number (9258300).

Almost surely, 2^133358401 is an apocalyptic number.

133358401 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

133358401 is a deficient number, since it is larger than the sum of its proper divisors (14774399).

133358401 is a wasteful number, since it uses less digits than its factorization.

133358401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1040.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 133358401 is about 11548.0907945859. The cubic root of 133358401 is about 510.9049689052.

It can be divided in two parts, 13335 and 8401, that added together give a triangular number (21736 = T₂₀₈).

The spelling of 133358401 in words is "one hundred thirty-three million, three hundred fifty-eight thousand, four hundred one".